AR066959A1 - Codificador de audio para codificar una senal de audio que tiene una porcion similar a un impulso y una porcion estacio-naria , metodos de codificacion, decodificador , metodo de de-codificacion, y senal de audio codificada - Google Patents

Codificador de audio para codificar una senal de audio que tiene una porcion similar a un impulso y una porcion estacio-naria , metodos de codificacion, decodificador , metodo de de-codificacion, y senal de audio codificada

Info

Publication number
AR066959A1
AR066959A1 ARP080102482A ARP080102482A AR066959A1 AR 066959 A1 AR066959 A1 AR 066959A1 AR P080102482 A ARP080102482 A AR P080102482A AR P080102482 A ARP080102482 A AR P080102482A AR 066959 A1 AR066959 A1 AR 066959A1
Authority
AR
Argentina
Prior art keywords
audio signal
audio
signal
impulse
encoder
Prior art date
Application number
ARP080102482A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of AR066959A1 publication Critical patent/AR066959A1/es

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Un codificador de audio para codificar una senal de audio que incluye un extractor por impulsos (10) para extraer una porcion similar a un impulso a partir de la senal de audio. Esta porcion similar a un impulso se codifica se direcciona a una interfaz de salida (22). Además, el codificador de audio incluye un codificador de senales (16) que codifica una senal residual obtenida de la senal original de audio de manera que la porcion similar a un impulso se reduce o se elimina en la senal residual de audio. La interfaz de salida (22) direcciona, las senales codificadas, i.e., la senal de impulso codificada (12) y la senal residual codificada (20) para la transmision o almacenamiento. Del lado del codificador, ambas porciones de senal se decodifican en forma separada y luego se combinan para obtener una senal decodificada de audio.
ARP080102482A 2007-06-11 2008-06-11 Codificador de audio para codificar una senal de audio que tiene una porcion similar a un impulso y una porcion estacio-naria , metodos de codificacion, decodificador , metodo de de-codificacion, y senal de audio codificada AR066959A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US94325307P 2007-06-11 2007-06-11
US94350507P 2007-06-12 2007-06-12
PCT/EP2008/004496 WO2008151755A1 (en) 2007-06-11 2008-06-05 Audio encoder for encoding an audio signal having an impulse- like portion and stationary portion, encoding methods, decoder, decoding method; and encoded audio signal

Publications (1)

Publication Number Publication Date
AR066959A1 true AR066959A1 (es) 2009-09-23

Family

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Family Applications (1)

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ARP080102482A AR066959A1 (es) 2007-06-11 2008-06-11 Codificador de audio para codificar una senal de audio que tiene una porcion similar a un impulso y una porcion estacio-naria , metodos de codificacion, decodificador , metodo de de-codificacion, y senal de audio codificada

Country Status (17)

Country Link
US (1) US8706480B2 (es)
EP (1) EP2165328B1 (es)
JP (1) JP5686369B2 (es)
KR (1) KR101196506B1 (es)
CN (1) CN101743586B (es)
AR (1) AR066959A1 (es)
AU (1) AU2008261287B2 (es)
BR (1) BRPI0811384A2 (es)
CA (1) CA2691993C (es)
ES (1) ES2663269T3 (es)
MX (1) MX2009013519A (es)
MY (1) MY146431A (es)
PL (1) PL2165328T3 (es)
PT (1) PT2165328T (es)
RU (1) RU2439721C2 (es)
TW (1) TWI371744B (es)
WO (1) WO2008151755A1 (es)

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Publication number Publication date
PL2165328T3 (pl) 2018-06-29
RU2009143665A (ru) 2011-07-27
AU2008261287A1 (en) 2008-12-18
AU2008261287B2 (en) 2010-12-16
CA2691993A1 (en) 2008-12-18
CN101743586B (zh) 2012-10-17
MY146431A (en) 2012-08-15
PT2165328T (pt) 2018-04-24
CA2691993C (en) 2015-01-27
KR20100024414A (ko) 2010-03-05
US20100262420A1 (en) 2010-10-14
ES2663269T3 (es) 2018-04-11
WO2008151755A1 (en) 2008-12-18
JP5686369B2 (ja) 2015-03-18
TW200912896A (en) 2009-03-16
JP2010530079A (ja) 2010-09-02
EP2165328B1 (en) 2018-01-17
KR101196506B1 (ko) 2012-11-01
TWI371744B (en) 2012-09-01
EP2165328A1 (en) 2010-03-24
CN101743586A (zh) 2010-06-16
US8706480B2 (en) 2014-04-22
MX2009013519A (es) 2010-01-18
RU2439721C2 (ru) 2012-01-10
BRPI0811384A2 (pt) 2017-08-01

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